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Finding the Third Proportional to 19,136,816 and 40,929,128

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Solution

The third proportional to 19,136,816 and 40,929,128 is: 87,537,734.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,136,816 : 40,929,128 = 40,929,128 : x
  2. Step 2: Convert to fraction form
    19,136,816/40,929,128 = 40,929,128/x
  3. Step 3: Cross multiply
    19,136,816x = 40,929,128 × 40,929,128
  4. Step 4: Simplify right side
    19,136,816x = 1,675,193,518,840,384
  5. Step 5: Solve for x
    x = 1,675,193,518,840,384/19,136,816
  6. Step 6: Final answer
    x = 87,537,734.53

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Why These Related Problems?

These problems maintain the same ratio (2.14) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.